| 单词 | neutral violet |
| 释义 | > as lemmasneutral violet neutral violet n. a dark green crystalline azine dye, C22H24N6·HCl, which forms a violet solution in water or alcohol and is used as a biological stain and acid-base indicator. ΘΚΠ the world > matter > chemistry > chemical tests > indicators > [noun] > other indicators or biological stains osmium tetroxide1869 thionine1886 neutral violet1890 carbol-fuchsin1891 triacid1896 1890 T. E. Thorpe Dict. Appl. Chem. I. 229/2 A similar product [to ‘neutral red’] is sold under the name of ‘neutral violet’. 1905 J. C. Cain & J. F. Thorpe Synthetic Dyestuffs xviii. 133 The only other Eurhodine of importance is Neutral violet.., prepared by the oxidation of a mixture of p-amidodimethylaniline and m-phenylenediamine. 1971 E. Gurr Synthetic Dyes 110 Neutral violet is only occasionally used as a biological stain. < as lemmas |
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